So, wth was that about? The guy looked/acted like he was having a good day, but why? He needed a hair-cut. Was he really singing? If so, then great control.
Yes. It’s an older meme, that the internet dubbed the Trololo song due to how the lyrics sound. He was a soviet union / Russian singer, and he died several years back. I think IIRC, he was surprised when that clip became popularized by the internet.